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Stars near Sagittarius A* and their orbits

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Sagittarius A* (SgrA*) is situated at the center of our galaxy and scientists have good evidence that this is in fact a black hole with a mass of four million suns. Most evidence comes from the observation of the movements of stars in the very neighbourhood of SgrA*.
This applet lets you observe the orbits and movements of some of these stars in a 3D presentation.



My applets have benefited from data compilations made by others. I have adapted files as they appear on several sites, especially

You should use the button "Data" down left in the applet to see more details concerning the sources of each individual file.

Site updated 08 May, 2017    Remarks and questions? areusite at free dot fr